ASTERIXDB-1329: fix substring type computer for arguments with ANY type.

Added a TinySocial test suite for open datasets.

Change-Id: I23b7d2865cf0bc58b9f402ea602969b326d46d93
Reviewed-on: https://asterix-gerrit.ics.uci.edu/688
Reviewed-by: Ian Maxon <imaxon@apache.org>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
diff --git a/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml b/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
index d289400..c7caed6 100644
--- a/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
+++ b/asterix-app/src/test/resources/runtimets/testsuite_sqlpp.xml
@@ -6231,6 +6231,11 @@
                 <output-dir compare="Text">tinysocial-suite</output-dir>
             </compilation-unit>
         </test-case>
+        <test-case FilePath="tinysocial">
+            <compilation-unit name="tinysocial-suite-open">
+                <output-dir compare="Text">tinysocial-suite-open</output-dir>
+            </compilation-unit>
+        </test-case>
     </test-group>
     <test-group name="types">
         <test-case FilePath="types">